|Scientific Name:||Etheostoma crossopterum|
|Species Authority:||Braasch & Mayden, 1985|
|Red List Category & Criteria:||Least Concern ver 3.1|
|Reviewer/s:||Smith, K. & Darwall, W.R.T.|
|Facilitator/s:||Hammerson, G.A. & Ormes, M.|
Listed as Least Concern in view of the fairly large extent of occurrence, large number of subpopulations, large population size, apparently stable trend, and lack of major threats.
|Range Description:||Range includes the middle and lower Cumberland River drainage, Kentucky and Tennessee (mostly below Caney fork but occurs in Obey River system and Barren Fork Collins River); middle Duck River system, including upper Buffalo River, Tennessee; Shoal Creek system (Tennessee River drainage, Tennessee and Alabama); and tributaries to the Mississippi River in western Tennessee (Reelfoot Lake, Bear Creek) and southern Illinois (Cache River) (Page and Burr 2011).|
|Range Map:||Click here to open the map viewer and explore range.|
This species is represented by a large number of occurrences (subpopulations).
Total adult population size is unknown but apparently quite large (likely greater than 100,000). This darter is common throughout much of its range (Page et al. 1992); locally abundant (Page and Burr 2011).
Trend over the past 10 years or three generations is uncertain but likely relatively stable.
|Habitat and Ecology:||Habitat includes rocky pools and adjacent riffles of headwaters and creeks (Page and Burr 2011). This darter prefers small quiet streams with large flat rocks or bedrock bottoms; small populations occur in small gravelly streams and in larger streams along quiet margins and beneath undercut banks (Braasch and Mayden 1985). Spawning occurs in cavities under rocks; females attach eggs to undersides of stones (Braasch and Mayden 1985).|
|Major Threat(s):||No major threats are known.|
|Conservation Actions:||Currently, this species is of relatively low conservation concern and does not require significant additional protection or major management, monitoring, or research action.|
|Citation:||NatureServe 2013. Etheostoma crossopterum. In: IUCN 2013. IUCN Red List of Threatened Species. Version 2013.2. <www.iucnredlist.org>. Downloaded on 12 March 2014.|
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